microRNA (miRNA) is a kind of 18 to 25 nucleotide non coding RNAs,which plays an important role in various ways.The abnormal miRNA expression patterns lead to many diseases of hematopoietic system.Myelodysplasitc syndromes (MDS) comprise a heterogeneous group of disorders characterized by ineffective hematopoiesis,bone marrow dysplasia and variable propensity of transformation to acute myeloid leukemia (AML).20 ％-30 ％ MDS patients may progress to AML.miRNA plays a key role in the develpoment,advance and prognosis of MDS.In this paper,the related miRNAs in the transformation from MDS into AML were reviewed.

Objective To investigate the eomman causes of premature delivery,the tocolytic effect and suc-cess ratio and the birth situation of premature infants. Methods 150 pregnant women with natural delivery or iatro-genie preterm labor from 28 weeks to 34 weeks who carried out tocolytic therapy because of threatened preterm labor or premature delivery after tocolytic therapy were selected. The common inducement of premature delivery, the pro-longed gestational weeks, the success ratio of tocolyis and the birth situation of premature infants were retrospectively analyzed. Results The premature rupture of membranes(PROM) ,the spontaneous uterine contraction and iatrogenic preterm labor were the main reasons of premature labor. The primiparas are the majority. The iatrogenic partus pre-maturus were prolonged, the asphyxia rate of premature infants was still high. The incidence of premature rupture of fe-tal menbranes in pregnant with tocolytic therapy beyond 1 week was 3. 3% ,and the incidence of spontaneous urerine contraction was 4. 8%. Conclusion Antenatal care and prenatal diagnosis are important to decrease the premature labor ratio as early as possible to use the D. X. M to promote the fetal lung maturity, so as not to delay the treatment.

Objective To investigate the significance and possible mechanism of food intolerance in diarrhea-predominant irritable bowel syndrome (IBS-D).Methods Twenty-seven IBS-D patients matched the Rome Ⅲ criteria were selected as IBS-D group.Twenty-seven healthy individuals without gastrointestinal symptoms were assigned to control group.Food intolerance situation of two groups were analyzed with food intolerance status evaluation questionnaire,and detection of 14 food specific IgG antibody.The severity of IBS symptoms of IBS-D group were scored by IBS-symptom severity scale (SSS).Two pieces of mucosal tissues of both ileocecal junction and sigmoid colon were obtained under colonoscopy.The content of mucosal substance P (SP) was determined by immunohistochemistry.The quantity of mast cells were detected by Giemsa staining.Chi square test and Fisher exact probability method were performed for rate comparison between two groups.Measurement data were compared with t test and Mann-Whitney rank sum test.The correlation between IBS-SSS score and mast cells and the expression of SP positive cells were analyzed by Spearman rank correlation analysis.Results There was no statistically significant difference in positive rates of food specific IgG between two groups (x2 =3.085,P=0.389),however according to food intolerance status evaluation questionnaire,the incidence of food intolerance of IBS-D group was 44.4 ％ (12/27) which was higher than that of control group (14.8 ％,4/ 27),the difference was statistically (x2 =5.684,P=0.017).Food intolerance severity index of IBS-D group (median:0(0,60)) was higher than that of control group (median:0(0,0)),and the difference was statistically significant (U=239.50,P =0.007).In foods that may cause intolerance,the percentage of foods rich in fermentable oligosaccharides and monosaccharides,disaccharides and polyol (FODMAP) such as milk,noodles,soybeans was up to 71.4％ (30/42).The expression tates of SP positive cells in the mucosa of ileocecal junction and sigmoid colon of patients with IBS-D were higher than those of the control group (x2-20.735 and 22.071,both P＜0.01).The numbers of mast cell in the mucosa of ileocecal junction and sigmoid colonic of patients with IBS D (2.40 ± 1.04/high power field (HPF) and 2.35±1.11/HPF) were more than those of the control group (0.97 ± 0.70/HPF and 0.89 ± 0.72/HPF),and the difference was statistically significant (t=-5.850 and-5.629,both P＜0.01).The severity of bowel symptom of patients with IBS-D was moderately correlated with the number of mast cells in the mucosa of sigmoid colon (r=0.576,P=0.002),and was moderately correlated with the expression of SP positive cells (r=0.691,P＜0.01).Conclusions There may be relation ship among low-grade inflammation of intestinal mucosa,food intolerance and severity of intestinal symptoms in patients with IBS-D.

Objective To observe the clinical efficacy and adverse reactions of desogestrel ethinylestradiol in the treatment of dysfunctional uterine bleeding ( adolescent Dub ) .Methods 86 cases with adolescent functional bleeding were divided into the treatment group and control group ,43 cases in each group .The control group received conjugated estrogen(Premarin) treatment,the treatment group was given desogestrel ethinylestradiol treatment .The hemostatic effect and drug adverse reaction of the two groups were observed .Results The cure rate of the treatment group was 65.1%,that in the control group was 23.3%,there was significant difference between the two groups (χ2 =15.28,P<0.01).The hemostatic time of the treatment group was (33.24 ±12.85)h,which was shorter than (50.31 ± 16.32)h of the control group (t=5.39,P<0.05).The incidence rate of adverse reactions between the two groups had no significant difference (χ2 =0.49,P>0.05).Conclusion Desogestrel ethinylestradiol in the treatment of ado-lescent functional bleeding has exact curative effect ,it has low incidence of adverse reactions and better acceptance .

Objective To explore the value of diffusion weighted imagine(DWI) and magnetic resonance angiography(MRA) for the clinical significance in acute cerebral infarction in the early stage.Method The results of DWI and MRA and traditional CT and routine MRI in 30 patients with acute cerebral infarction were analyzed.Result Ultra-acute and acute cerebral infarction could be shown on DWI,which may not be shown on CT and T 2.WI.The focus that were shown on T 2.WI were more clearly shown on DWI.Focus and degree of intracranial vascular lesion could be detected rapidly.Conclusion DWI and MRA are sensitive for diagnosis in the early stage of acute cerebral infarction.Cerebral constitution and cerebral vessels can be shown by DWI and MRA,thus offering reliable imaging data for thrombolytic therapy.

Purpose: To evaluate the effect and safety of combination chemotherapy with oxaliplatin( L-OHP) plus 5-fluorouracil(5-FU)/folinic acid( CF) in advanced colorectal cancer( ACRC). Methods: 31 patients with ACRC entered the study. L-OHP 130 mg/m2 , iv infusion for 4 hours on day 1; CF 200 mg/m2 , iv infusion for 2 hours followed by 5-FU 500mg/ m , iv infusion for 4 hours from day 1 to day 5, repeated every 3 weeks. Results: There were 10 partial responses, 7 stable disease, 9 progressive disease, the response rate being 38. 5% . The main adverse effect was neuro-sensory toxicity which was seen in 90. 3% of the patients. Vomitting and diarrhea was observed in 58. 1% and 45. 2% of the patients respectively. Bone marrow suppression was mild. Conclusions: L-OHP combination with 5-FU/CF yields an encouraging response with acceptable toxicity in our study. Furthermore clinical reseach is worthwhile.

Objective To discuss the comparability of total bibe acidl(TBA) results among different detection systems.Methods 3 different kinds of coagulation detection systems were used to detect TBA concentration in 2 levels of Randox quality controls and 45 clinical sera according to EP9-A file.The collected data were dealt with statistical analysis.Results The analysis of variance showed TBA resulls from different control and patients sera had significant diffefence in different detection systems (P

Objective To investigate the effects of granulocyte colony-stimulating factor on proliferation of adipose-derived adult stromal cells(ADASc) in rats. Methods Sixteen SD rats were randomly divided into G-CSF group( n = 8) and control group( n = 8). The rats were subjected to subcutaneous injections of G-CSF at a dose of The ADASc were separated and cultured. Then: ( 1 ) The surface antigens of the ADASc were analyzed by flow cy- tometry. (2)The growth information of the ADASc were observed in vitro. (3)The generation cycle of the ADASc were investigated with the flow cytometry. Results ( 1 ) Flow cytometic detection of ADASe surface marks showed CD44+CD105-CD31-CD45-(2)The doubling generation time, the maximum proliferation multiple and the cell cycle distri- bution of ADASc in G-CSF group had significant difference from that of the control group. Conclusion The discrep- ancy adherence was a practical method to culture the ADASc;G-CSF treatment could promote ADASc re-entering into cell cycle.

Objective To discuss the similarities and differences of clinical manifestation and pathological characteristics in hepatitis B virus related membranous nephropathy (HBV-MN) between children and adult. Methods Ninety cases with HBV-MN were divided into two groups according to the age:children group (33 cases) and adult group (57 cases). A retrospective control study was carried out to analyze the clinical and pathological features of the two groups. Results The incidence of anemia in children group was 45.45% ( 15/33 ), which was significantly higher than that in adult group [15.79% (9/57)](P ＜ 0.01). Nephrotic syndrome was the largest proportion in two groups,but there was no significant difference in the composition of clinical manifestations between two groups (P ＞0.05). Membranous nephropathy Ⅱ was common in pathological stage in two groups. The incidence of membranous nephropathy Ⅱ in children group was 63.64% (21/33),which was significantly higher than that in adult group [42.11%(24/57)] (P ＜ 0.05 );immunohistochemistry showed "all bright", and the deposition of HBcAg in renal biopsy was also higher than that in adult group (P ＜ 0.05). Conclusion There are some similarities and differences in HBV-MN between children and adult patients,and these will help to improve the levels of diagnosis and treatment.

Objective To evaluate application of fist clenching method with shaking hands in venipuncture to elderly angular patients. Methods 360 elderly angular patients were randomly divided into group A and group B with 180 cases in each group. Group A used fist clenching method with shaking hands, group B adopted traditional fist clenching method in venipuncture. Pain degree and one-time success rate of two groups were compared. Results One-time success rate of group A in venipuncture was obviously higher than group B, while pain degree of group A was less than group B. Conclusions Fist clenching method with shaking hands to elderly angular patients can raise success rate in venipuncture, and reduce pain degree of patients.